Ralf07 here with yet another story even though there still many unfinished fic. In fact none of my story have completed at all. Anyway… I decide to write another Crossover of Zero no Tsukaima fic and here I am.

This time it was a Crossover with Madan No Ou no Vanadis… I'm not sure whether the reader have even heard the story so I tried to make it easier to understand for those who never even know the series ever existed.

Unlike my other fic it was hard to find information for this series except from the light novel itself so I probably add something myself so you can say this is kind of AU in a way.

Before we begin for those let me apologized for many grammatical and punctuation error that I'm sure you will discovered in this fic. I'm not sure how much I improve but I have to admit there still much error in every chapter I wrote.

Without further ado let begin.

Disclaimer: I don't own Zero no Tsukaima and Madan no Ou to Vanadis. It belongs to their respective owner.

On a Desert with a scorching heat one could see two group- no. rather than a group it would not be exaggerated to called them an army. An army made of human forming a formation on one side. the number exceed of what normally an army should have. If one were to count the number of people there the number could easily exceed ten million.

Meanwhile on the other side only have about a hundred thousand of people but the difference of this group of army was made up entirely of Elf. In the middle of the sky the Battalion of Dragon knight had already prepared to move and so were battleship.

Thus… the Holy crusade has begun.

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Somewhere in the main Battleship.

Clang! Clang!

The sound of a shackle can be heard as I continued struggling trying to break free from shackle at both of my hand. Even so… the chain doesn't shown to be damaged at all no matter how much I tried smashing it at the concrete wall.

My guess is that the chain must somehow enhanced by some sort of magic making it more durable than usual. If only I could find something that could act as a weapon I might have a chance to break free but doesn't seem like there any. Knowing that guy he must have removed anything that could act as a weapon from my vicinity.

Now how do I get out of here….

*Taptap*

As I was pondering what to do I can hear a foot step approaching. I settled down for a moment as I wait for the owner of the footstep.

"ya, long time no see." from beyond the prison where I am stood Julio as he look at me.

"Sure… the last time we met was when you knock me out which I don't know when." My tone was sarcastic for sure. It was without a doubt his fault that I was in this kind of state in the first place.

"Oya… I seems to be hated." He said trying to sound sad but his smiling face just make it fail.

"Oi… why am I in this kind of state? What did I do to deserve this?" I ask him trying to play ignorance but I think I have a good idea why I was chain in this prison.

"Hahaha… there no need to play dumb. This won't be happening if you didn't learn the truth about the Shaitan gate." He said as he look at me his face full of smile as usual which make it harder to know his true feeling.

"So you knew... But how- wait… maybe there is a void spell that could read mind?" If that the case than it obvious. I was ready to feign ignorance so that I could get the news to Henrietta. If she knew that the whole Shaitan Gate thing was a lie than this war must be stop at once.

"Hm… not exactly correct but well I leave it to your imagination. Anyway… I think it time for me to leave. Your friend right there seems like she would woke up anytime soon and I don't think it would be a good idea for me to be here when that happened." Julio said as he looks at the unconscious girl not too far from me.

"Wait! At least tell me what exactly Shaitan Gate is!" I shout but Julio just ignore me as he walk away leaving the prison.

Damn… I hope Louise and Tiffa is safe. I look at the still unconscious girl not too far from me. The girl was if I have to say a pretty girl which a hair almost like Tiffa and her ears was pointy but unlike Tiffa she is a Full blood elf. The only thing that differentiate her from Tiffa was their Breast... I'm not thinking this in a perverted way mind you. Anyway… the girl was flat… for an Elf she is rather flat. I don't think I ever met any Elf as flat as her.

*Twitch*

For some reason she twitch in her sleep every time I think about Flat. Did she hear what I was thinking right now? No… that was just my imagination.. After all the girl still unconscious.

Her name if I'm not mistaken was Fatima I think. She was task with chasing after me, Tiffa and Lukshanna by the order of the Elves and I have to say if Tiffa doesn't summon me at that time she would, things would end up worse. That girl was using a gun for god sake! Not the kind that Agnese use but a Handgun. Lukshanna once brag that elves technology was much more advance than human. Well... the human In this world at least. I guess that much was true if they could recreate a gun. Given time and the right environment I'm sure they could catch up with the Earth technology in just a matter of time. Not to mention with their magic they could even surpassed the Earth technology. Of course this won't be happening with how the Elves have coop up in the middle of desert. They need to broaden their horizon if they want the technology to advance.

Anyway… why the heck am I thinking about the advancement of technology at this kind of time. There must be something wrong with me. It feel like an Alternate version of me which is a Mad scientist seems to be affecting me somehow.

Back to the story… I managed to beat the two companion that came with Fatima and I thought I knock down her as well but who knows that the girl could be persistent as she chase us deep inside the Dragon cave.

The story goes like this.

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'Flashback'

"huff… huff… there no way for you to run. Now give yourself up and die right here." the girl Fatima said as she point her gun at us.

Bang! Clang!

"Oi! NOT EVEN WARNING SHOT!" I shout as I swung Derf using a Battoujutsu I unsheathe Derf at light speed as I cut the bullet in two with ease. But still how could she just aim at us without even giving some sort of warning shot? This elves need to learn some firearm rule… not that I know what this firearm rule is.

"H-how-"she seems to left speechless as I easily block her bullet using a sword.

"Heh… you sure are persistent Flat chest Elves-chan. But you can't beat me with just a mere gun." At my word her body starts to shake. Although I may look confident even I'm not sure if I could defend myself forever. To defend from a gun using a sword one would need to be in a highest state of concentration and for some reason I feel this calming effect in myself ever since I form a contract with Tiffa.

"F-flat C-chest you say…"

Bang! Clang! Another shot was block.

"Heh… I told you it usele-"

Bang! Bang! Bang! Clang! Clang! Clang!

"AT LEAST LET ME FINISH TALKING!" this girl sure is impatient.

"S-saito-san… I don't think you should provoke her any further." Tiffa said behind me. But this is necessary for our survival. Thanks to her for losing composure it was easy for me to predict the path of the Bullet as I deflect them easily. Am I cool or what!?

"Heh… did you run out of Bullet already? Well that can't be help after all with a Breast like that there will be no place to hide a Bull-"

*Spark" lightning start to run through her body. Crap! I think I went overboard! I forgot that this girl was an Elves and Elves mean that she can use Firstborn magic which isn't a good idea In this situation.

*Vroom* A blast of lightning shoot out from her body as it head at us. Before it could hit us I raised Derf as I or rather Derf absorb the lightning within him.

"Phew… that was close- Guahhh!" I thought it already over but this time she summons a large block of ice above her. "Oi! Do you want to cause a cave in!? if that kind of attack was used in the cave it would surely cause a cave in for sure!" I tried to reason with her but doesn't seems like it would work.

"No one… no one call me a Flat Chesttt!"

"THAT YOUR REASON!" I can't believe someone could be out of control for just for calling her Flat Chest. Even louise… well I guess she will cast the Explosion right there if someone call her that even if it mean getting buried. Are all Flat chest people is this kind of character?

"Partner, Use that!" Derf word brings me back to realities. Guess I have no choice huh…

*Spark!* A lightning start to run through Derf and at the same time a large block of ice was shoot at us.

"Saito-san!" I can hear Tiffa shout behind me but I can't hesitate here.

Ok for an attack it need a name so let call this attack…

[Spark Slash!]

*Bzzt* with a lightning Enhance Derf I slash through the block of ice like it was nothing… around me lightning shoot out destroying the remain of Ice as they were reduced to a smaller pieces.

Heh… never thought that this ability would be useful. It one of the Derf ability that he just remember. He can change his own element property based on the Element that was absorbed previously. In this case since I just absorb a lightning based attack I could then use the element itself from Derf. Of course it only limited to the previous element. For example if he absorb a fire element and next he absorb wind Element he can change his property to Wind not Fire.

Not only that it power also limit to how many element it absorb for example with just a Dot class magic the power would also be weak but if it was a Square class magic Derf will be able to unleash many more strong attack. the downside of it is that for example if Derf first absorb Square class Fire magic and then he absorb a Dot class wind magic all the accumulate fire element will be gone and he will only be left with the power level of Dot wind magic. But if it was the same element it fine as the power will only build up but if it too much it might cause Derf to break like last time so I have to be careful on that.

Anyway… back to the current situation…

"Eh? What did I do just now…" she doesn't even remember what she did! I make a mental note not to call her flat chest her if we're ever in a place that could cause a cave in. "ah… I have to-"

*thud* the sound of her flesh hitting the ground.

"Yare… yare… that seems to be a close call." Julio appear from behind her and it seems that he just knock her out with a back of his sword.

"J-julio… what are you doing here? no… how are you even in this kind of place?" How the heck did he appear in this place with is deep in the ocean.

"Haha… I'm sure you have a lot of question but before that…" Julio bring out an some sort of orb out of his pocket before muttering. "Sleep!"

And just like that I feel dizzy. The last thing I remember was Julio smilling face and the glowing rune on his Forehead.. Wait… on his forehead? Isnt that Myoz- my thought stop there as everything went black.

'Flashback end'

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That how it end up like this. After that when I woke up I found myself shackle up to this chain meanwhile the Flat chest Elves seems to be sleeping peacefully with her hand bound behind that is.

*Twitch*

Oh… another twitch. It seems she really react to the word. Better be careful not to wake her- oh… seems like she awake already.

"Ugh…" she woke up groggily and then stop as she noticed me. I wave at her but she only look at me with her eyes half open. Guess she still half asleep despite the fact that both her hand was bound behind her back, how carefree can this girl be?

"Oi.. wake up… sleepy head… or else your Flat Chest will stop growing." At the word her eye suddenly snap wide open In an instant as she glared at me.

"Who are you calling Flat Che- eh? I can't move my hand." she tried to move her hand and that when she noticed that her hand was currently bound. How slow could this girl be? Anyway now what I gotten a good look at her noticed that her face seems to be similar to Louise… well if you change her hair colour to pink and her ear to a human one I bet you could get another clone of Louise easily. Could it be coincidence or maybe she have some connection with Louis hm… then again she is an Elves and Louise a Human … so there no way they could be a connection between her and Louise. I must be imagining things.

"W-what are you looking at? Is there something on my face." the girl again struggle to move her hand as she tried to check whether it was really something on her face.

"No... There nothing on your face… I just feel like staring at your cute face that all." Anyone who look the same as Louise are cute in my book. If someone said she wasn't cute then that person was heretic and I gladly cut them down. Geh… I seems to be thinking something dangerous just now.

"W-what are you saying at times like this! I wont be fool by a human word!" she seems flutter and for some reason as she blush. Sigh… I really want to see Louise right now. I wonder what she's doing right now...

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10 day… 10 days had already passed since the holy crusade begin and what was once a Desert was changed to something that doesn't even look like a desert at all. With a tree growing from the ground as a human body pierced by a tree branch decorated the tree. Not only that a sea of Water fill the area as it drown a dozen of human. On the other side there was a wall of fire as it burns any human who got near them.

An arrow flew above as it was aim at the Elf but all the arrow was easily deflect by the wall of Wind form by the Elves. The human was mercilessly slaughter but even so they still keep fighting as the Elves also took some damaged. While human have advantage in number it was useless against the might of Firstborn magic. Even so… for the Elves who have less in number some of them had start to become fatigue for fighting without a rest with give human some chances but even so… one elves alone was enough to ward of a hundred of human like it was nothing.

In mid air the battle was different. With the help of Julio mass producing a new type of Canon human gain an advantage over Elf while the Elf Firstborn magic was render useless the further away they are from the land. Even so… they managed to hold back the human from advancing.

"Enemy from behind!" one of the Elves shout and sure enough as all of a sudden a hole rip open the space behind them as a human army past through it. one by one the Elves who was caught off guard being slaughtered and then a sound of breaking glass can be heard as a Spell [Counter] which is use to guard them from human spell was broken due to the confusion. And then…. A bright light start to cover the area where they are as an Explosion occurred.

*KABOOMMM!* Both Elf and the human was engulfed by the light.

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"Huff…. Huff…" Louise stood panting as she watches what happened. She… with her own hand… she just kill all the Elves like there was nothing. Louise hand still tremble as she held the wand on her hand.

"Good… that should give us the opening we need. All unit Charge!" Vittorio have the command as the army start to move in formation killing any elves in their way.

"I've done what you want so return Saito back!" Louise glare at Vittorio with a face full of hatred. She doesn't have a choice in this. if she didn't do it Saito might get killed and that something she cant let happen no matter what.

"Please release Saito-san… I beg you…" the Half Elves Tiffania was also begging Vittorio. After using the boy as a Hostage Vittorio managed to get the two to work for him. What they didn't know that the boy was kept somewhere in the ship. Now that the Four Void user had gather he will need a full set of familiar to unleash a true void but alas now is not the time.

Just he thought this a Tremor shook the land and then a Four Giant figure appear. Each Giant represent the four Element with Fire, Wind, Water and Earth on the Elves side the Giant crush a thousand of human in just one strike.

Some of the soldier tried to escape but it was useless in the face of the mighty Giants. Thousand Giant Golem appear as they face against the Four Giants but none of them was a match for the four even with their massive number.

"It is time." Vittorio mutter as his body start giving out a soft glow so were Louise and Tiffania and Yossette who was standing not too far from them. The four Ruby also let out a glow together with the four Void item.

XXXXXXXXXXXXXXX

"W-what is this?" suddenly both of the rune on my body start to glow as I feel power surging out from the rune.

"W-what happened to your body!?" Fatima seems a little freak out but I can see she seems worried. Although it only been a five days we know each other but being together all the time only make our bond much stronger. Of course we weren't always together as Julio sometimes visit us to gave us some food to eat and take care of some Business… I can't say that out loud! Anyway… the fact that the rune is glowing seems to me that something must have happened outside. I wouldn't know considering I don't even know where I am but judging by the constant shaking I seems to be in some sort of ship.

I wonder what exactly happened outside.

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*zuinnnn*

A large energy start gathering in the sky. Even one who is not a mage could feel the energy and they could tell it was something that could only be described as the Power of the God shine through the sky. Even the light of the sun was overshadowing by the light of the energy.

*Zwoosh*

The light expands as it covers the whole battlefield in an instant. Both Elves and human alike cover they eyes from the intense light by instinct.

A moment passed as they regain their sight and what had been a four Standing Giant was nowhere to be seen. The four Giant was eliminated by the light in the sky. Seeing that the Giant was no longer morale for the human increased as they continued their marching.

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Henrietta watch from above the sky as their army continued marching killing the Elves. Is this really a good thing? She want ask someone but she was a queen and a queen can't act by their personal emotion alone. She learn that the hard way during the war with Albion. Because of her personal feeling she had sent many soldier to their death… and even that boy almost died during the war.

"Your majesty." A messenger came to her bringing what appear to be a document. "There a document from Prime Minister Marzarin and it appear to be something important." The messenger said as he present the letter to her.

"Thank you. You may go now." she dismissed the soldier and as soon as she was alone she open up the document as she read it. It seems that it had already begun. Marzarin report was that there was a sudden increase of activities of a Windstone beneath the Capital of Tristain. It could be a year, a month a few days or even today. At this rate Tristain will turn into the same kind of floating island as Albion and Fire Dragon Mountain.

It seems this is it. She was a queen and because of that she have to act for her people best interest and right now the only way to save her people was use this switch that could be find in the Shaitan gate. Before that she would have to get through the Elf first. If thing could be solve peacefully than she would take the choice but the problem is they have no time. By the time the Elves even agreed to coexist with human Halkeginia would probably have been turn to ruin already.

Yes.. this her choice as a queen of Tristain. But… if it was that boy Saito… who had already save her so many times she can imagine he would said "You should just do what you want. If you don't want to do it then don't do it." something like that. Yes… he would definitely would said something like that and just imagining it make her smile. She wants to at least hear it… the word from Saito…

Anyway… Henrietta was rather suspicious of Vottorio movement. The fact that he was keeping Louise and Tiffania was rather suspicious but when he told her that it would be better for the void mage to be together she doesn't raise anymore question about that. Now that she thought about it again it was rather suspicious.

Perhaps she ought to at least make contact with Louise. She had tried to request to meet with Louise before but was rejected saying that a void mage have to concentrated but she feel like he have some other motive. Maybe it would be better to meet Louise secretly. Henrietta finally made up her mind.

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"Gah… my eyes! I can't see!"

"I can't move my legs!"

"OI! His wound wouldn't stop Bleeding!"

This is a medical room. any injured soldier was taken here though the number of casualties was higher with leave many of Water mage use up all their will power.

Siesta had done everything she can. she had cook, clean, and even help an a few injured soldier. This is a Battlefield it was not a place for her but she feel like she have to do something while everyone was fighting. The only think she could do was cook and clean and she intent to do just that.

As long as she could be of help she would do it and her most important reason was to see her Master again. She had heard that Saito was within the army but so far she doesn't even see his silhouette yet. she felt disappoint and relief at the same time. Disappoint that she can't see Saito but relief that Saito wasn't injured.

Louise and Tiffania was taken somewhere and it not somewhere a maid like her could go wandering around.

As she was working Siesta suddenly noticed a group of familiar people. It was easy to spot considering that the uniform they wear was none other than Tristain magic academy. What did they doing there? Siesta deeling curious tried to approach them.

"So… this is where Saito being captive huh…" the voice which she recognize as Guiche spoke and when Siesta heard that she practically jump to the group.

"Saito was kidnapped!" her sudden appearance startled the group.

"Gah.. Don't startle us like that… um… you are Saito maid Siesta was it?" Guiche who tried to gather his composure ask Siesta for confirmation.

"That doesn't matter! What do you mean Saito was kidnapped!?" Siesta ignored him as she ask him about Saito. Normally a commoner talking like that to a Noble would not be tolerated but Saito personality seems to had rub on them as they doesn't even feel angry at Siesta rudeness. After all no one is as rude to the noble other than Saito.

"Eh? W-what do you mean by that?" Guiche said but his eyes were on anything but her which clearly said he was hiding something.

"Tell me!" Siesta said without her realizing it with a commanding tone which causes Guiche and the other to cower a bit. If it about Saito she have the right to know.

"Guh… g-guess we can't hide it anymore… well you see.." and so Guiche start explaining the situation. apparently they receive an anonymous information about Saito being kidnapped and was held in the ship where the pope was in.

By the ship he meant the ship that had been floating in the rear without involving in a fight. It was the ship where Louise and Tiffania had been taken to just now.

"The course clear, now the time." Suddenly appearing was a short girl with a blue hair. Her name was Tabitha and she was the queen of the Gallia if not for her twin sister she would still be on the throne right about now.

When hearing Tabitha word the other nod at each other.

"Yosh… we Undine knight will not abandon our Vice commander. Let us save him with all our strength." Guiche said as the other follow with a cry.

"L-let me come to…" Siesta said as Tabitha turn to look at her without a word.

"…" she stares at her before finally saying. "I am Saito knight… I will save him." Tabitha word was simple but for the maiden in love Siesta could feel something is rising up with in her.

"I-I could fight to." Siesta declared as she raised the frying pan as if guarding her body.

"Um… are you really serious on using that as a wea- never mind." What Guiche want to said was lost by the spark that appear… well there not really a spark but as the two girl stare at each other it as if a spark was dancing between them.

"Come." Tabitha said simply as Sylphid who had been besides her lowering her back as if telling them to ride it. Of course not all of the group could ride in Sylphid so it was decide that Tabitha, Siesta, Guiche, Reynald, and Malicorne would be coming though Malicorne look like he doesn't want to but the decision have been made so there nothing he could do.

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"So the war had already start… sigh… I wish it wouldn't come to this." Colbert mutters as he look up on the sky from Ostland. Colbert felt powerless as he can't even stop a war which would lead to million death. Right now there nothing he could do except making sure that his student was safe- where are they?

They all gone… beside miss Zerbst he can't seems to find them anywhere.

"Miss Zerbst do you know where the other student is?" he asks the only person here hoping that she know something.

"Come on… let forget about them… why don't you and i…" Kirche tried to flirt but Colbert only replied with a stern face.

"I'm serious here… where are the other student?" He ask again at this Kirche turn to a pout.

"Ceh… your no fun. Well if you're talking about the Undine knight together with Tabitha they left long ago." They left? Where could they be goin- no. Before, there was some anonymous information telling Saito had been kidnapped but Colbert had stop them from acting recklessly. After all it could be a trap to lure them.

He has no choice but to chase after them it seems. And with that Colbert pilot the Ostland as he head for the battlefield.

Okay… I think that all for this chapter. I don't want my first chapter to be to long so I will stop the story here. Damn for a prologue it sure is long and we don't even get to the crossover part yet. anyway…as you can see this story continues from what happened at Volume 20 with slight variation on my own. For example Derf new ability was something I just thought of.

And in case you wonder who Fatima is she appear during volume 20 and since there not much information about her beside there a picture of her I based her personality from the picture so you can also say she kinda like an Oc who is not an Oc.

This will be of course harem…. well as usual my policy is despite it being a harem that doesn't mean it will have a Harem ending though.

Anyway… since the Madan no Ou no Vanadis is always center on war I want to tried to writing about a war myself and I have to admit I seems to fail miserably. I'm not really knowledgeable with Military strategy and stuff so this is what coming out from my imagination. I guess the only way for me to improve is by continuing writing it till I get used to it. Forgive me from that.

I think that all from me… though I have to say first don't expect me to update this chapter quickly as I'm still focusing on 'Familiar of Devil' so… please review and tell me what you think about this story… well I don't think there much to say in the first place but oh well.

See you later.